[FFmpeg-cvslog] lavc/acelp_pitch_delay: replace exp2f(M_LOG2_10 *x) by ff_exp10f(x)

[Ganesh Ajjanagadde]

ffmpeg | branch: master | Ganesh Ajjanagadde <gajjanagadde at gmail.com> | Wed Dec 23 12:24:44 2015 -0800| [0abdcae5a9075fc5527b273822c50ae04c7b0c8f] | committer: Ganesh Ajjanagadde

lavc/acelp_pitch_delay: replace exp2f(M_LOG2_10 *x) by ff_exp10f(x)

Suggested-by: Ronald S. Bultje <rsbultje at gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0abdcae5a9075fc5527b273822c50ae04c7b0c8f
---

 libavcodec/acelp_pitch_delay.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavcodec/acelp_pitch_delay.c b/libavcodec/acelp_pitch_delay.c
index 3ecec01..c2533b1 100644
--- a/libavcodec/acelp_pitch_delay.c
+++ b/libavcodec/acelp_pitch_delay.c
@@ -22,6 +22,7 @@
 
 #include "libavutil/common.h"
 #include "libavutil/float_dsp.h"
+#include "libavutil/internal.h"
 #include "libavutil/libm.h"
 #include "libavutil/mathematics.h"
 #include "avcodec.h"
@@ -132,7 +133,7 @@ float ff_amr_set_fixed_gain(float fixed_gain_factor, float fixed_mean_energy,
     // ^g_c = ^gamma_gc * 100.05 (predicted dB + mean dB - dB of fixed vector)
     // Note 10^(0.05 * -10log(average x2)) = 1/sqrt((average x2)).
     float val = fixed_gain_factor *
-        exp2f(M_LOG2_10 * 0.05 *
+        ff_exp10(0.05 *
               (avpriv_scalarproduct_float_c(pred_table, prediction_error, 4) +
                energy_mean)) /
         sqrtf(fixed_mean_energy);